Show more context information in the logs.

Add line numbers and function name from where the log is displayed.
Add support for running lxde polkit agent.
Merge remote-tracking branch 'ivan/feature/more-verbose-logs' into develop
Merge remote-tracking branch 'ivan/feature/4028_support-lxpolkit' into develop
Increase the max retries for the sessions in SRPAuth
Merge remote-tracking branch 'chiiph/bug/increase_retris_logout' into develop
Add missing empty init file to the config module
Fix widget fit problem. Closes #4058.

The spacer policy was wrong.
The size of the wizard had to be increased.
The icon was shrinked.
Merge remote-tracking branch 'ivan/bug/4058_spacer-policy-problem' into develop
Hide login error message when editing lnUser and lnPassword
Display the mail status menu enabled
Merge remote-tracking branch 'chiiph/bug/hide_error_message' into develop
Merge remote-tracking branch 'chiiph/bug/display_mail_status_enabled' into develop
Rename the Util menu to File in OSX
Merge remote-tracking branch 'chiiph/bug/osx_menu' into develop
Merge remote-tracking branch 'chiiph/bug/config_init' into develop
openvpn observer

reacts to tls-restart, ping-restart and network unreachable.
changs file
Set dep versions on VERSION_COMPAT.
Merge remote-tracking branch 'kali/feature/improve-openvpn-error-detection' into develop